Derrick a 77-year-old gentleman presents to the ED by ambulance from his nursing home. Recently he has been quite well, but over the last two days has become increasing agitated, particularly at night. He is now refusing food, he is unsure of where he is and wants to go home. He also states that staff have been stealing from him. He has a history of Alzheimer’s disease, hypertension and ischaemic heart disease. He has no past psychiatric history.
His mental state examination is as follows:
Appearance and behaviour: He is well dressed but agitated
Speech: Normal
Effect: Irritable mood, and an anxious affect
Perception: No hallucinations
Thoughts: His accusations about staff stealing things maybe delusional or misinterpretations
Insight: He has limited insight
Cognition: He is not orientated to time or place and is confused.